Electric heating unit



E. A. RUTENBEH.

ELECTfiiC HEATING UNIT.

APPLICATFUN mm APa.22.191s.

1,337,725. Patented Apr- 20, 1920.

lH VE/Y TOE fan/m 4 Pore/ vane.

- parts.

1 UNITED STATES PATENT oFFIoE.

EDWIN A. RUTEN BER, OF MARION, INIJIANA, ASSIGNOR TO BUTENBER ELECTRIC 00.,

OF MARION, INDIANA, A CORPORATION.

' ELECTRIC HEATING UNIT.

To all whom it may concr'rn Be it known that I, EnwIN A. RU'lI-JNBER, a citizen of the United States, and a resident of Marion, county of Grant, and State of Indiana, have invented a certain new and useful Electric Heating Unit; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying dr'aw-. ings, in which like numerals refer to like Thisinvention relates to electric heaters and the prime object of the invention is the provision of a heating coil \'vhich is arranged within the reflector in such manner that the heat from the entire surface of the coilwill be reflected. A further feature of the invention is the manner of attaching 1 the heating coil to the reflector, and a fur- 0r winding the heating, coil upon an insulating core or support.

herfeature of the invention is the means Thefull nature ofthe invention will be understood from the accompanying draw- ,mgs fund the following (lGSCIlPtlOIl and a claim? In-the drawings, Figure 1 is afront ele- Fig. 2 is a detailed sectional view thereof, as seen on the line 2-2 of Fig. 1. Fig. 3 is an enlarged detailedsectional view, as seen on line 3-3 .of Fig. 2. Fig. 4 is an enlarged end elevation of the heating coil and its sup )ort.

Beferrin to'the drawings, 1 in icates a pedestalw iich may be constructed in any preferred manner, and 2 indicates a reflec tor which also may be of the usual or any preferred type, the peripheral edge of said reflector preferably having a radial extension 3 attached thereto.

In heating devices of this class, it has been customary heretofore to place a heating coil transversely of the axial center of the reflector so that but a portion of the heat from the coil will be reflected or thrown out into the room, but in the present device, the heating coil is wound upon an insulating core or support 5 preferably of porcelain or similar substance, sail coil being en'- tcred in spirally arranged grooves 6 surrounding the core and extending from end to end thereof, the coil being wound from one end of the core in each alternate groove and thcn passed through a slot 7 in the outer end of the core and rewound into the Specification of Letters Patent.

Patented Apr. 20, 1920.

Application filed April 22, 1915. Serial 1%.230924.

remaining grooves until it is brought to the inner or initial end of the core. The core 5 and heating coil wound thereon are concentric with the axial center 'of the rdfiector 2' and the core is anchored in fixed position by extending a bolt 8 longitudi nally through the core 5 through spacin blocks 9 and 10 and through a'hase blocl; 11, all of which parts are likewise formed of insulating .material, the spacing block Qhavinga reduced portion 12 which passes through the opening in the reflector. Passcarrying parts are insulated from each other and from the parts of the reflector.

The various parts through which the bolt 8 extends are locked inflxed en agement with each other and with the re ector by introducing-a nut 16 on the threaded end of the bolt 8 which jams against the face of the baseblock 11 while the head 17 of the-bolt engages a shoulder 18 in a recess 19 at the outer end of the core5; and when the nut is properly turned onto the bolt, all of the insulating parts will be-held rigidly in place.

fter these parts have been properly attached to the reflector, a shield 20 is introduced around the base block 11, the open edge of the shield restin against the rear face of the reflector 2, w die the closed end thereof is provided with an openingthrough \vhich the end of the bolt 8 extends, a nut 21 being employed for locking the shield onto the bolt. The feed wires 15 roject through an insulated bushim 22 tu'ough the wall of the. shield 20 which prevents said feed wires from coming in contact with anv parts of the shield.

ly mounting the heating coil in the man---. nor shown and as the length of the heating coil is less than the depth of the reflector. all of the heat units from the entire surface of the heating coil will be projected outwardly by the reflector. thereby obtainin the maximum heating power from the col It will likewise be seen that this device can be very cheaply constructed and quickly applied to use or removed from engagement with the reflector as it is biit necessary to release hi the one bolt in order to remove and separate all of the parts of the heating unit.

The invention claimed is.

In a heating device, the combination with a reflector having an opening at its axial center, of a heating coil, an elongated insulating core on which said coil is spirally wound, a spacing block for insulating the heating coil from the reflector, a base block, and a bolt extending axially through said core, spacing block and base block for locking them together and securing them in positinn.

In witness whereof I have hereunto affixed my signature in the presence of the 2' witnesses herein named.

EDWI N A. BUT

Witnesses J. L. Hun, REGINA BAILEY. 

